tls: refactor Picotls ctx_read function to reduce one time memory copy

[vpp.git] / src / plugins / tlspicotls / tls_picotls.h

diff --git a/src/plugins/tlspicotls/tls_picotls.h b/src/plugins/tlspicotls/tls_picotls.h
index 0fa19c5..92f7b0f 100644 (file)
--- a/src/plugins/tlspicotls/tls_picotls.h
+++ b/src/plugins/tlspicotls/tls_picotls.h
@@ -9,9 +9,13 @@
 
 #define TLS_RX_LEN(x) ((x)->rx_content + (x)->rx_len)
 #define TLS_RX_OFFSET(x) ((x)->rx_content + (x)->rx_offset)
-#define TLS_RX_IS_LEFT(x) ((x)->rx_len != (x)->rx_offset)
+#define TLS_RX_IS_LEFT(x) ((x)->rx_len != 0 && (x)->rx_len != (x)->rx_offset)
 #define TLS_RX_LEFT_LEN(x) ((x)->rx_len - (x)->rx_offset)
 
+#define TLS_READ_OFFSET(x) ((x)->read_buffer.base + (x)->read_buffer_offset)
+#define TLS_READ_IS_LEFT(x) ((x)->read_buffer.off != 0 && (x)->read_buffer.off != (x)->read_buffer_offset)
+#define TLS_READ_LEFT_LEN(x) ((x)->read_buffer.off - (x)->read_buffer_offset)
+
 #define TLS_WRITE_OFFSET(x) ((x)->write_buffer.base + (x)->write_buffer_offset)
 #define TLS_WRITE_IS_LEFT(x) ((x)->write_buffer.off != 0 && (x)->write_buffer.off != (x)->write_buffer_offset)
 
@@ -24,8 +28,10 @@ typedef struct tls_ctx_picotls_
   u8 *rx_content;
   int rx_offset;
   int rx_len;
+  ptls_buffer_t read_buffer;
   ptls_buffer_t write_buffer;
   uint8_t *write_content;
+  int read_buffer_offset;
   int write_buffer_offset;
 } picotls_ctx_t;